Spindle mounting for textile machines



Ma.y 24, 1938. w. R GORDON SPINDLE MOUNTING FOR TEXTILE MACHINES FiledAug. 31, 1937 INVEN TOR. WE. 50117012 Patented May 24, 1938 v PATENTOFFICE SPINDLE MOUNTING FOR TEXTILE MACHINES William R. Gordon;Stonington, Conn., assignor to The Atwood Machine Company, Stonington,Com, a corporation of New Jersey Application August 31, 1937, Serial No.161,801

6 Claims.

This invention relates to spindle constructions for textile machines andparticularly to a swinging type spindle for yarn twisting machines.

A primary object of the invention is to provide means to regulate theforce holding the spindle toward its operative position with its whorlin contact with the spindle driving belt.

Another object of the invention is to provide an improved pivotalconnection between the swinging spindle mounting member and itssupporting bracket, the swinging member also supporting an annularmember on which may be detachably mounted a spindle enclosing member.

With the above and other objects in view the invention includes thefeatures of construction and operation set forth in the followingspecification and illustrated in the accompanying draw- In theaccompanying drawing annexed hereto and forming a part of thisspecification, I have shown the invention embodied in a standard form oftwisting machine but it will be understood that the invention can beotherwise embodied and that the drawing is not to be construed asdefining or limiting the scope of the invention, the claims appended tothis specification being relied upon for that purpose.

In the drawing:

Fig. 1 is a complete front elevation of a spindle construction embodyingmy invention.

Figs. 2 and 3 are sectional views taken on the plane of line 22 of Fig.1 and showing alternate constructions, and

Fig. 4 is a sectional view taken on the plane of line 4-4 of Fig. 3.

In the above mentioned drawing there has been shown but one completeembodiment of the invention which is now deemed preferable, but it is tobe understood that changes and modifications may be made within thescope of the appended claims without departing from the spirit of theinvention.

Briefly, and in its preferred aspect, the invention may include thefollowing principal parts: first, a supporting bracket secured directlyto the frame tubes of the machine; second, a swinging member pivoted tosaid-bracket; third, a spindle assembly mounted on the swinging member;fourth, a supporting ring or bracket for a spindle enclosure mounted onsaid swinging member; fifth, a vertical pin or shaft forming the pivotfor the swinging member; sixth, a spring disposed between the bracketand swinging member; and, seventh, securing means for the pivot pinenabling the pivot pin to be secured in any rotative Referring more indetail to the figures of the position so that the pressure of theswinging member toward its spindle driving position may be regulated.

drawing there is shown one complete spindle assembly. It will beunderstood that a number of similar assemblies will be employed on atwisting machine spaced closely together. As each assembly is or may beidentical, but one assembly is shown. A bracket ID on which the spindleassembly is pivotally supported is rigidly secured to the frame tubes orpipe girts I I of the machine. Any form of attachment permittingadjustment to accurately position the bracket and assembly may beemployed. As these securing or clamping 15 means form no part of thepresent invention further' description will not be necessary. v

Secured to the bracket Ill in a manner presently to be more fullydescribed is a vertical shaftI' Z forming the pivot pin upon which aswinging 20 member I3 may be mounted for limited angular movement. Theshaft I2 is provided withs'paced apart journal bearings engaging bearingsurfaces provided in the swinging member I3.

On the swinging member I3 may be mounted 25 a standard form of spindleassembly including a bolster I4 resiliently supported in position by aspring I5 and nut It in the usual manner. The spindle I1 and whorl I8may be of any usual construction for the particular operations to beperformed. As shown, the whorl I8 is adapted to contact with a wide flatdriving belt I9 of standard form and maintained in contacting positionby suitable idler pulleys 20.

The upper surface of the swinging member I3 is,'as shown, horizontal andhas secured thereto a ring or annular bracket 2I surrounding the spindleI1 and swinging with movements of the member I3. Mounted detachablywithin this ring or annular bracket 2| is a spindle enclosure 22completely surrounding and enclosing the supply bobbin 23 and spindleI'I. At the upper closed end of the enclosure 22 is a central aperture24 through which the material being twisted may pass from bobbin 23 tothe take-up means (not shown).

To resiliently force the swinging member I3 toward its operativeposition to provide driving contact between the whorl I8 and belt I9, ahelical spring 25 is disposed around the lower end of the shaft I 2. Theupper end of this spring 25 engages against a surface of the swingingmember I3 and may have this end enter an aperture provided in the memberI3. The lower end of the spring 25 is bent inwardly and enters atransverse slot 26 provided in the lower end of shaft l2. Preferably andas shown there may be provided a spacing collar 2'! secured to the shaftl2 which supports the weight of the swinging member l3 and parts mountedthereon.

In order to adjust the force exerted by the spring 25 against theswinging member I! provision is made to secure the shaft l2 to itsbracket in any angular or rotative position. The shaft l2 at anintermediate point is provided with an annular peripheral groove 28. Ataper pin 29 within the bracket in passes across a portion of the groove29 as shown in Fig. 2 and frictionally engages the shaft II. A standardform of taper pin 29 entering a taper reamed hole in the bracket may beused, the frictional contact between the pin 29 and the surface of theshaft l2 being sumcient to securely retain the shaft H in adjustedangular position.

A cylindrical pin as shown in Figs. 3 and 4 may be substituted for thetaper pin 29. In this case the pin 30 would have one side bevelled oflto form the desired taper and would preferably enter a cylindrical holetransversely of the bracket Hi. The groove 3| shown in Fig. 4 for a pinsuch as shown at 30 may be so formed that the narrow plane surface ofthe pin 30 may engage the bottom surface of the groove 3!.

To adjust the spring 25 to give the desired pressure of the whorl I8against its driving belt 5 9 the parts may be assembled as shown withpin 29 or 30 lightly engaging the groove 28 or 3|. With the parts soassembled and with a suitable tool inserted within slot 26 the shaft I2is turned to a position giving the desired pressure of the spindleassembly toward its operative position. The pin 29 or 30 then is tightlydriven within its hole in the bracket l9 while the shaft I2 is inadjusted position so that a firm engagement takes place sufficient topermanently retain the shaft 12 in adjusted position, With the shaft l2so adjusted any desired force of the spring 25 may be used to providethe driving contact for rotating the spindle l1. As the shaft l2 can besecured in any angular position the pressure of the spring 25 can. beregulated very accurately. Also by simply loosening or removing the pin29 or 30 to disengage the shaft l2 the shaft pan be adjusted to a newposition and secured therein.

It will be understood that the pins 29 or 30 can be inserted from eitherthe front'or rear of the bracket l0, whichever is most convenient andbest adapted to retain the shaft l2 in its angularly adjusted andclamped position. v

I claim as my invention:

1. A spindle mounting for textile machines comprising in combination abracket, a shaft secured therein, a spindle mounting member pivotallysupported on said shaft, a spring normally forcing the spindle mountingmember toward its operative position, means to regulate said spring byangular adjustment of said shaft relative to said bracket, and means tosecure said shaft in said bracket in any pre-determined angularposition.

2. A spindle mounting for textile machines comprising in combination, a,bracket, a shaft secured therein, a spindle mounting member pivotallysupported on said shaft. a spring surrounding said shaft and having oneend contacting said spindle mounting member and the other end engagingsaid shaft, and means to secure said shaft in said bracket in anypredetermined angular position, whereby the force of said spring againstsaid member may be varied by angular adjustment of said shaft.

3. A spindle mounting for textile machines comprising in combination, abracket, a shaft secured therein, a spindle mounting member pivotallysupported on said shaft, a spring one end of which engages said shaftnormally forcing the spindle mounting member toward its operativeposition, and frictional retaining means for said shaft in said bracket,whereby the angular position of said shaft and the pressure of saidspring may be adjusted.

4. A spindle mounting for textile machines comprising in combination, abracket, a shaft secured therein, a spindle mounting member pivot-.

ally supported on said shaft, a-spring one end of which engages saidshaft normally forcing the spindle mounting member toward its operativeposition, and a taper pin'within said bracket frictionally engaging saidshaft, whereby the angular position of said shaft and the pressure ofsaid spring may be adjusted.

5. A spindle mounting for textile machines comprising in combination, abracket, a shaft secured therein, a spindle mounting member pivotallysupported on said shaft, a spring surrounding said shaft and having oneend contacting said spindle mounting member and the other endengagingsaid shaft, frictional retaining means to secure said shaft in saidbracket in any predetermined angular position, whereby the force of saidspring against said member may be varied by angular adjustment of saidshaft.

. 6. A spindle mounting for textile machines comprising in combination,a bracket, a shaft secured therein, a spindle mounting member pivotallysupported on said shaft, a spring surrounding said shaft and having oneend contacting said spindle mounting member and the other end engaging aslot formed in said shaft, and a taper pin extending through saidbracket and frictionally engaging a groove in said shaft to secure saidshaft in any predetermined angular position in said bracket, whereby theforce of said spring against said member .may be varied byangularadjustment of said shaft.

WILLIAM R. GORDON.

